P4840P-3R-F57 WKP35S Wendeplatten - Walter Tools

Take advantage of a high-performance coated grade for reliable boring and reaming of steels and cast irons; the combination of Tiger·tec Silver coating and the WKP35S grade delivers stable chip formation and extended tool life, supporting consistent cycle times. Order inserts through Metav Werkzeuge or consult their technical team for application-specific recommendations.

P4840P-3R-F57 WKP35S Boring/reaming indexable insert by Walter Tools — Tiger·tec Silver, chipbreaker 3R-F57

The P4840P-3R-F57 WKP35S is a coated indexable insert engineered for productive boring and reaming operations on steel and cast iron, combining a wear-resistant grade with a dedicated chip control geometry.

• Tiger·tec Silver coating for thermal stability
• WKP35S: coated carbide grade for P/K applications
• Chipbreaker 3R-F57 for consistent chip control
• Optimised for productive boring and reaming

Consistent performance on steel and cast iron for reduced cycle variance

The Tiger·tec Silver technology in this grade offers a balanced coating architecture that improves thermal resistance and reduces edge degradation during interrupted cuts. As a result, the insert sustains cutting parameters for longer periods, which means fewer tool changes and more predictable cycle times. Designed for ISO groups P and K, the specification addresses the typical heat and chip formation behaviour of unalloyed and alloyed steel as well as the abrasive, short-chipping nature of cast iron, translating directly into higher machining efficiency and lower per-part tooling cost.

Reliable chip control and extended tool life with chipbreaker 3R-F57

The integrated chipbreaker 3R-F57 is configured to produce manageable chip segments throughout the bore depth, reducing the risk of chip entanglement and improving surface integrity. Coupled with the WKP35S coated carbide, the geometry promotes stable chip formation, which stabilises the cutting process and lowers the incidence of edge chipping. This combination supports higher material removal rates where the machine and holder dynamics allow, delivering measurable gains in throughput while maintaining part quality.

Geometry and coating tailored for process security and repeatability

A cutting grade selected for demanding metalcutting environments enhances process security by offering a robust cutting edge and consistent wear behaviour. The insert’s ground and coated surfaces are optimised for repeatable seating and run-out stability in standard boring and reaming toolholders, helping to keep tolerances within expected ranges. By reducing variability at the tool–workpiece interface, shops benefit from fewer inspections and less rework, contributing to a more stable production flow and predictable output quality.

Practical guidance for selection and application planning

When integrating this insert into a machining cell, consider matching holder rigidity and spindle capability to the intended cutting parameters to fully leverage the WKP35S grade. The selection supports both roughing and semi-finishing passes in its recommended material groups; for finishing or atypical alloys, verify cutting data in trials. For tailored cutting recommendations and support with machining strategies, Metav Werkzeuge’s consultants can provide cutting-speed and feed guidance based on machine power and component geometry, helping to align the insert’s strengths with the process requirements.

Contact Metav Werkzeuge for application-specific advice on Walter Tools P4840P-3R-F57 WKP35S inserts and to discuss availability: info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• SKU: P4840P-3R-F57-WKP35S-WALTER
• Article designation: P4840P-3R-F57 WKP35S
• Product type: Boring/reaming indexable insert
• Brand: Walter Tools

Key figures

• ISO material groups: P, K
• Grade: WKP35S
• Series: Tiger·tec Silver

Design / Special features

• Coating technology: Tiger·tec Silver
• Grade description: WKP35S, coated cemented carbide
• Chipbreaker: 3R-F57
• Suitable materials: steel, cast iron
• Designation base: P4840P-3R-F57

FAQ

What materials is this insert designed for?
The insert is specified for steel and cast iron applications; the P4840P-3R-F57 WKP35S grade targets ISO groups P and K for effective machining behaviour.

How does the Tiger·tec Silver coating benefit machining?
The Tiger·tec Silver coating increases thermal and wear resistance of the cutting edge on the WKP35S grade, which helps maintain cutting parameters longer and reduces edge wear during interrupted or heavy cuts.

What advantage does the 3R-F57 chipbreaker provide?
The chipbreaker 3R-F57 promotes segmented chips and consistent evacuation in boring and reaming operations, lowering the risk of chip-related surface damage and improving process stability.

Is this insert suitable for finishing passes?
The P4840P-3R-F57 WKP35S insert is optimised for productive boring and semi-finishing in its recommended material groups; for high-precision finishing, verify the finish requirements and consider complementary geometries.

Can this grade improve overall productivity?
Yes, the combination of the WKP35S grade and Tiger·tec Silver coating supports longer tool life and reliable chip control, which together contribute to reduced downtime and improved throughput in serial machining.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned solely for explanatory purposes. There is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.